Edge setter



Oct. 9, 1934, s, A DO YNE 1,976,334

EDGE SETTER Filed Sept. 21. 1931 I 5751/54 50 4. floer/m 5 9 9 l atentedOct. 9, I934 f w M 1,976,334

PATENT OFFICE EDGE SETTER Stevenson A. Dobyne, St. Louis, Mo., assignorto Champion Shoe Machinery Company, St. Louis, Mo., a. corporation ofMissouri Application September 21, 1931, Serial No. 563,911

3 Claims. (Cl. 12'17) This invention relates generally to a device forsetting sole edges, and particularly to such a device which is adaptedfor usevwith the usual finishing machine of a shoe repair shop.

In the use of setters in shoe repair shops it is recognized that thesetting tool itself is tovbe operated but a relatively short period oftime since the setting operation upon sole edges requires but relativelylittle time as compared to some other operations, and as a generalrulein a shoe repair shop the same workman performs each of the variousoperations on shoes undergoing repair. Accordingly it is unnecessaryunder such circumstances as the use of a setting tool 'in a repair shopthat the setting tool should remain heated at all times. However, in.accordance with the heating devices which have been previously employedin connection with setting tools of the type referred to, it has beennecessary to maintain the tool heated during all working hours of theshop, or else substantial delays would be encountered when a workmandesired to set a job, in view of the fact that the heating devicesheretofore employed have been relatively slow in their action. If,however, the setting tool was maintained continuously heated, it isapparent that a great loss of energy would be present naturallyincreasing the expense of operating the device.

An object of this invention generally stated is to provide a heatingdevice for a setter which is adapted to bring the setter to the desiredtemperature within a relatively short period of time.

A further object of this invention is to provide a friction device forheating a setting tool.

A more specific object of this invention is to provide a friction devicefor heating a setting tool in which the friction device willautomatically adapt itself to engage the maximum area of the settingtool.

A further object of this invention is to provide a device forcontrolling a position of a friction heating device for a setting tool.

Other objects will become apparent to those skilled in the art when thefollowing description is read in connection with the accompanyingdrawing, in which Figure 1 is a plan view illustrating the heatingdevice and control mechanism therefor, for a setter as employed upon theusual finishing machine of a shoe repair shop;

Figure 2 is a detail view in side elevation taken along line 22 ofFigure 1, and illustrating particularly the control mechanism for thefriction heater of this invention; r

Figure 3 is a detail sectional view taken along line 3-3 of Figure l andillustrating particularly the friction device of the present invention;

Figure 4 is a perspective View showing the friction device of thepresent invention.

j Generally stated in accordance with the present invention a suitableassembly of friction material is provided and adapted to be moved intoengagement with a face of the usual setting tool such as is employedupon finishing 65. machines in a shoe factory. While the setting tool isbeing revolved at a relatively high rate of speed the friction devicemay be moved into engagement therewith so that it acts in the nature ofa brake, but in view of the fact that the setting tool is being rotatedat a relatively high rate of speed the heat generated by the action ofthe friction device is sufficient to rapidly heat the setting tool tothe desired temperature. In accordance with one embodiment of thepresent invention the friction device is universally mounted so thatupon engagement of the setting tool by the friction material the latterwill aline itself so that the maximum area thereof engages the maximumarea of the setting tool, and accordingly the heating of the settingtool is accomplished in a relatively short period of time. A suitablemechanism is preferably provided for moving the friction material intoand out of engagement with the setting tool and a spring may be employedfor forcing the friction material into firm contact with the settingtool.

Referring now particularly to the drawing, a bracket 1 is carried by andmay form a part of the usual framework for such a machine as thefinishing machine usually employed in a repair shop. Such machines asjust referred to are usually provided with a longitudinal shaft such as2 upon which may be mounted the various tools or devices which are to bedriven. It is to be understood that the shaft 2 may be driven from anydesired source and preferably at a relatively high speed. A suitablebearing such as 3 may be provided for receiving the 100 shaft 2 whichmay be suitably supported by the bracket 1.

At one side of the bearing 3, for instance at the back thereof, asuitable bracket such as 4 may be provided and may be secured thereto by1 means of any suitable device, such as for instance screws 5. Thebracket 4 may be provided with a cylindrical portion 6 adapted toreceive a shank 7 which latter may be secured within the cylindricalportion 6 in any desired 110 manner. Slidably mounted upon the shank 7is a barrel 8 having at one side thereof and extending outwardlytherefrom a spindle such as 9. Mounted upon the extended end of thespindle 9 is a collar 11 rotatable relative to the barrel 3 and having acentral opening 12 adapted to loosely receive the shaft 2. The centralopening 12 is preferably of such size as to accommodate packing material13 for engagement directly with the shaft. It will be understood thatthe collar 11 is so mounted as to be slidable axially relative to theshaft 2 in accordance with the movement of the barrel 8 along the shank7.

Suitably mounted upon the outer end of the shaft 2 in any desired manneris a setting tool 14 as illustrated in Figure 1. Such a setting tool as14 may be of the usual well known construction varying in shape and sizein accordance with the particular use to which it is to be put. In theembodiment illustrated the outer end of the shaft 2 is provided with areduced portion 15 and radially extending from the reduced portion 15 isa pin 16 adapted to cooperate with a groove, such as 17, provided on theinterior surface of the setting tool 14. It will be understood, however,that any connecting arrangement may be employed for securing the settingtool 14 upon the shaft 2.

Mounted upon the collar 11 and at the side thereof adjacent the settingtool 14 an annular frame 18 is provided. The frame 18 is preferablyformed of a channel structure as clearly illustrated in Figure 3 havingan annular opening defined by the inwardly extending flange 19 andhaving a second flange 21 extending substantially parallel to the flange19. The frame 18 is preferably provided with a pair of ears such as 22extending axially therefrom in a direction away from the flange 19. Theframe 18 may be pivotally mounted on the collar 11 by means of suitablepins or screws such as 23 extended through openings provided in ears 22.It will be understood that frame 18 is preferably so mounted that theflange 21 is slightly spaced from the adjacent face of the collar 11.With the frame 18 thus mounted upon the collar 11 it is apparent that avariably yieldable or pivotal movement of the frame relative to thecollar and about an axis extending through pins 23 is possible. Betweenthe flanges 19 and 21 of the frame 18 suitable friction material 24,such as for instance asbestos or leather, may be assembled. Suchfriction material may be in the form of thin discs, any number of whichmay be mounted so that a substantial portion thereof is exposed throughopening of the frame 18, the outer limit of which is defined by the edgeof flange 19. It may be pointed out that the flange 19 preferablyextends only for a sufficient distance to retain the friction material24 in assembled position within the frame and so that the face 25 of thesetter which is adapted to be heated may extend therewithin in order toengage the friction material 24.

Mounted also upon the shank '7 is a collar 26 which may be provided witha suitable set screw such as 2'7 adapted to engage the shank 'l toprevent relative movement of the respective parts. The collar 26 ispreferably provided with a cylindrical recess such as 28 adapted toreceive a pin 29. It will be understood that the pin 29 may be securedin the collar 26 such as by a suitable threaded connection. Pivotallymounted upon the pin 29 is a lever 31 which is prorel 8.

vided with a stop lug 32 adapted to engage the bracket 4 and a secondstop lug 33 the purpose of which will be pointed out hereinafter.

A link 34 is provided for connecting the lever 31 to the barrel 8, itbeing understood that the link 34 is preferably attached through asuitable pivotal connection at each end thereof to the respective parts,as for instance through a screw 35 mounted in the lever 31 and through ascrew 36 mounted in an extended portion of the bar- From an inspectionof Figure 1 it will be apparent that the lug 33 is disposed in positionfor engagement with the edge of link 34 as the lever 31 is rotated aboutits pivotal pin 29 so that the lug operates as a stop for limiting themovement of the lever 31 relatively to the link 34 in one direction.

The lever 31 and the link 34 are preferably so arranged that when theparts are in the position illustrated in Figure 1, i. e., with thefriction material 24 disengaged from the face 25 of the setting tool 14,the screw 35 connecting link 34 and the lever 31 will be disposedslightly below a line drawn through pin 36 and pin 29 as is clearlyillustrated in Figure 2. At the same time lug 32 is in engagement withthe cylindrical portion of bracket 4 so that further clockwise movementof the lever 31 is prevented. Interposed between the collar 26 and thebarrel 8 on shank 7 a suitable spring, such as for instance 37, may beprovided. It is apparent that the tendency of spring 37 is to force thebarrel in a direction away from the collar 26 and accordingly when theparts are in position illustrated by the full lines in Figure 2 theforce of the spring will tend to cause the screw 35 to move downwardlybut such movement thereof is prevented by the lug 32. When in thisposition it is apparent therefore that the spring 3'7 operates toprevent the parts from being displaced, or to prevent counter-clockwisemovement of the lever 31 which would effect a movement toward the leftof barrel 8. Once, however, the lever 31 has been displaced to such anextent that the pin 35 comes above the center line referred to, it isapparent that the spring 37 will operate to bias the parts in such adirection that the barrel will be moved toward the left.

From the foregoing description it is believed that the operation of thepresent invention will be apparent, it being understood that thefriction material 24 is mounted for pivotal movement in one planerelative to the collar 12, and the collar 12 is similarly mounted formovement relative to the barrel 8 and about the spindle 9. With such anarrangement of parts it is apparent that the frame 18 containing thefriction material 24 is capable of universal movement relative to theshaft 2 and the setting tool 14. Accordingly when the lever 31 is movedinto position illustrated by the dotted lines in Figure 2 the spring 37will exert a force tending to urge the friction material 24 intoengagement with the face 25 of the setting tool, and at the same timethe friction material 24 will aline itself by virtue of its universalmovement so that the maximum engageable friction area thereof is incontact with the face 25 of the setting tool 14.

It is apparent that the device hereinbefore described is susceptible ofmany modifications which will present themselves to those skilled in theart without departing from the spirit of the invention. It is to beunderstood that the invention is not limited to the specific detailswhich have heretofore been set forth and illustrated in the accompanyingdrawing, and that the use of such features and sub-combination offeatures, as does not depart from the spirit of this invention, iscontemplated by and within the scope of the appended claims.

Having thus described the invention what is claimed is:

1. A device of the kind described comprising, a setter iron having aface adapted to be heated, a friction device engageable With said face,and. a universal mounting for said friction device.

2. A device of the kind described comprising, a setter iron having aface adapted to be heated, a frame having an opening substantiallyconforming to said face, friction material mounted STEVENSON A. DOBYNE.

